A new study just released from Stanford, MIT, Harvard, McKinsey, and the U.S. Treasury looks at what are America's longest-living cities. The study, published in The Journal of the American Medical Association, used income versus life expectancy in a sample involving more than 1.4 billion person-ye…

A new study about life on other planets suggests pollution may be the key in finding alien civilizations. This would be a new approach to finding extraterrestrial life by studying the atmospheres of planets.